Genes and Inheritance 0.0 / 5 ? BiologyGenesinheritanceA2/A-levelAQA Created by: amberlalaurenCreated on: 24-01-17 19:20 What is a gene? Part of a DNA molecule that codes for a polypeptide 1 of 14 What is a chromosome? A structure in the nucleus of a cell, which carries genetic information 2 of 14 What is a diploid? Two sets of chromosomes 3 of 14 What is an allele? Alternative form of a gene 4 of 14 What is homozygous? Two identical alleles of a gene 5 of 14 What is heterozygous? Two different alleles of a gene 6 of 14 What is haploid? Cells that contain only one set of chromosomes 7 of 14 What is a zygote? A diploid cell resulting from the joining of two haploid gametes 8 of 14 What happens during meiosis? The cells divide, where the number of chromosomes are halved 9 of 14 What is a genotype? A genotype is the complete set of gene variants, which have been inherited 10 of 14 Dominant allele If the allele is present it will be expressed and seen in the phenotype 11 of 14 What is a phenotype? A phenotype is the measurable features that an organism possesses 12 of 14 Recessive allele If dominant allele is not present the recessive allele is expressed 13 of 14 What is codominance? Codomiance means that if two different alleles are present they will both be expressed 14 of 14
Comments
No comments have yet been made